closed-pixmap-source

Arguments:
outline-pixmap-interface

Returns (or sets with setf)
the path namestring of the .bmp pixmap file from which the pixmap
instance to display on non-expanded outline-items was originally read
(if any). When this value is set, load-pixmap is called on the path
namestring, a pixmap object is created from the information that is
read, and the pixmap is cached by calling cache-pixmap on it so that it may
later be retrieved by calling find-pixmap on its name.